Comparison between effective radiation dose of CBCT and MSCT scanners for dentomaxillofacial applications

Loubele, Miet; Bogaerts, Ria; Dijck, E. Van; Pauwels, Ruben; Vanheusden, Sofie; Suetens, Paul; Marchal, Guy; Sanderink, G.C.H.; Jacobs, Reinhilde

doi:10.1016/j.ejrad.2008.06.002

Cited by 456 publications

(308 citation statements)

References 18 publications

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“…In a comparison between effective radiation dose of CBCT and Multislice CT (MSCT) scanners for dental and maxillofacial applications, effective dose values ranged from 13 to 82 lSv for CBCT and from 474 to 1160 lSv for MSCT [5]. Similar data concerning a significant decrease in radiation dose values have been reported elsewhere [4,6].…”

Section: Discussionsupporting

confidence: 71%

“…It is likely that the strongest aspects of CBCT, i.e. the high isotropic spatial resolution reaching 100 lm or less, the relative lowradiation dose requirements and fewer metal artefacts are characteristics that have made it particularly attractive as a valuable diagnostic technique [5][6][7]. In the head and neck region, where the vascular and bony structural anatomy is particularly complex, the ability to discriminate fine anatomic detail can provide a much more effective clinical tool [8].…”

Section: Introductionmentioning

confidence: 99%

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Cone-beam CT to assess bony fusion following anterior cervical interbody fusion

et al. 2015

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Purpose Assessment of bony fusion following anterior cervical interbody fusion (ACIF) is usually done by plain film or CT. We present the first clinical application of Cone-Beam CT (CBCT) to evaluate bony fusion after ACIF. Methods A 56-year-old man with disc herniation at C6-C7 underwent ACIF surgery using a compressed nanocrystalline hydroxyapatite interbody device (nanOss-C, Pioneer Surgical Marquette, MI, USA) and a nanocrystalline hydroxyapatite bone graft filler (nanOss Bioactive, Pioneer Surgical Marquette, MI, USA). Imaging follow-up was performed by CBCT (NewTom 5G, QR Srl, Verona, Italy) at 1 day, 6 weeks, 3 and 9 months postoperatively. Two independent assessors quantitatively measured the greyscale changes of the bone graft filler and qualitatively evaluated the bony fusion process. Results Quantitative analysis of the images showed a steadily increasing matrix density of the bone graft filler over the 9 months follow-up, suggesting increasing calcification. Qualitative evaluation demonstrated different stages of the bone fusion process within the disc space around the cage, at the interface between cage and endplates, and at the interface between bone graft filler and the endplates.Conclusions CBCT provides high-resolution cross-sectional imaging of the cervical spine after ACIF. For the first time, in vivo evaluation of the bone graft filler within the centre of the circumferentially radiodense cage and detailed cross-sectional evaluation of bone fusion was achieved. Confirmation of these promising outlooks of CBCT in a large cohort of ACIF patients is needed with regard to routine clinical application and evaluation of different interbody devices.

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Section: Discussionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Cone-beam CT to assess bony fusion following anterior cervical interbody fusion

et al. 2015

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“…Moreover, it has been shown that dental trauma and developmental anomalies can be better assessed in 3 dimensions (16,(30)(31)(32). Nevertheless, CBCT imaging has its own limitation; the effective radiation dose delivered by CBCT devices available in the market varies enormously from around 10-1200 mSv (which is an equivalent of 2-240 panoramic radiographs) (33,34). Therefore, a proper balance (optimization) between, on the one hand, costs and radiation dose and, on the other hand, information required needs to be maintained (16).…”

Section: Clinical Researchmentioning

confidence: 99%

3-dimensional Analysis of Regenerative Endodontic Treatment Outcome

EzEldeen

Gorp

Dessel

et al. 2015

Journal of Endodontics

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Introduction: A growing body of evidence supports the regeneration potential of dental tissues after regenerative endodontic treatment (RET). Nevertheless, a standard method for the evaluation of RET outcome is lacking. The aim of this study was to develop a standardized quantitative method for RET outcome analysis based on cone-beam computed tomographic (CBCT) volumetric measurements. Methods: Five human teeth embedded in mandibular bone samples were scanned using both an Accuitomo 170 CBCT machine (Morita, Kyoto, Japan) and a SkyScan 1174 micro-computed tomographic (mCT) system (SkyScan, Antwerp, Belgium). For subsequent clinical application, clinical data and low-dose CBCT scans (preoperatively and follow-up) from 5 immature permanent teeth treated with RET were retrieved. In vitro and clinical 3-dimensional image data sets were imported into a dedicated software tool. Two segmentation steps were applied to extract the teeth of interest from the surrounding tissue (livewire) and to separate tooth hard tissue and root canal space (level set methods). In vitro and clinical volumetric measurements were assessed separately for differences using Wilcoxon matched pairs test. Pearson correlation analysis and Bland-Altman plots were used to evaluate the relation and agreement between the segmented CBCT and mCT volumes. Results: The results showed no statistical differences and strong agreement between CBCT and mCT volumetric measurements. Volumetric comparison of the root hard tissue showed significant hard tissue formation. (The mean volume of newly formed hard tissue was 27.9 [AE10.5] mm 3 [P < .05]). Conclusions: Analysis of 3-dimensional data for teeth treated with RET offers valuable insights into the treatment outcome and patterns of hard tissue formation. (J Endod 2015;-:1-8)

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“…9 With the advent of cone-beam computed tomography (CBCT) in dentistry, teeth and supporting bone can be evaluated with a low dose of radiation as compared to other diagnostic medical imaging techniques, such as computed tomography (CT) scanning. 10 The CBCT images allow clinicians to evaluate the size of the alveolar bones without the disadvantages of conventional radiographs, as these images give accurate measurements as a result of the high clarity, with the possibility of extracting cephalogram images with accuracy and reliability. [11][12][13] Several studies in the orthodontic literature have focused on the relationship between the thickness of anterior alveolus and the labiolingual position of upper and lower incisors; the relationship between different skeletal jaw positions and anterior alveolar thickness has also been evaluated.…”

Section: Jcdpmentioning

confidence: 99%

Evaluation of Bone Thickness and Density in the Lower Incisors’ Region in Adults with Different Types of Skeletal Malocclusion using Cone-beam Computed Tomography

Al-Masri¹,

Ajaj²,

Hajeer³

et al. 2015

The Journal of Contemporary Dental Practice

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Objectives: To evaluate the bone thickness and density in the lower incisors' region in orthodontically untreated adults, and to examine any possible relationship between thickness and density in different skeletal patterns using cone-beam computed tomography (CBCT). Materials and methods:The CBCT records of 48 patients were obtained from the archive of orthodontic department comprising three groups of malocclusion (class I, II and III) with 16 patients in each group. Using OnDemand 3D ® software, sagittal sections were made for each lower incisor. Thicknesses and densities were measured at three levels of the root (cervical, middle and apical regions) from the labial and lingual sides. Accuracy and reliability tests were undertaken to assess the intraobserver reliability and to detect systematic error. Pearson correlation coefficients were calculated and one-way analysis of variance (ANOVA) was employed to detect significant differences among the three groups of skeletal malocclusion.Results: Apical buccal thickness (ABT) in the four incisors was higher in class II and I patients than in class III patients (p < 0.05). There were significant differences between buccal and lingual surfaces at the apical and middle regions only in class II and III patients. Statistical differences were found between class I and II patients for the cervical buccal density (CBD) and between class II and III patients for apical buccal density (ABD). Relationship between bone thickness and density values ranged from strong at the cervical regions to weak at the apical regions. Conclusions:Sagittal skeletal patterns affect apical bone thickness and density at buccal surfaces of the four lower incisors'

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Comparison between effective radiation dose of CBCT and MSCT scanners for dentomaxillofacial applications

Cited by 456 publications

References 18 publications

Cone-beam CT to assess bony fusion following anterior cervical interbody fusion

Cone-beam CT to assess bony fusion following anterior cervical interbody fusion

3-dimensional Analysis of Regenerative Endodontic Treatment Outcome

Evaluation of Bone Thickness and Density in the Lower Incisors’ Region in Adults with Different Types of Skeletal Malocclusion using Cone-beam Computed Tomography

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